This was 12.9 percent lower than the state average of 37 percent. In 2020 the total municipality population reached 100.
80.7 percent of the population had at least a high school diploma or the equivalent.
Degree distribution in Sombrillo for 2020*
| Degree | Number of people | Percentage of population |
|---|---|---|
| No degree | 16 | 19.3 |
| Regular high school diploma | 20 | 24.1 |
| GED or alternative credential | 2 | 2.4 |
| Some college, less than 1 year | 19 | 22.9 |
| Some college, 1 or more years, no degree | 6 | 7.2 |
| Associate's degree | 2 | 2.4 |
| Bachelor's degree | 15 | 18.1 |
| Master's degree | 3 | 3.6 |
| Professional school degree | 0 | 0 |
| Doctorate degree | 0 | 0 |
Alerts Sign-up